Home / 669,138.60-1,003,375.80-242,657.40

Finding the Fourth Proportional to 669,138.60, 1,003,375.80 and 242,657.40

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Solution

The fourth proportional to 669,138.60, 1,003,375.80 and 242,657.40 is: 363,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,138.60 : 1,003,375.80 = 242,657.40 : x
  2. Step 2: Convert to fraction form
    669,138.60/1,003,375.80 = 242,657.40/x
  3. Step 3: Cross multiply
    669,138.60x = 1,003,375.80 × 242,657.40
  4. Step 4: Simplify right side
    669,138.60x = 243,476,562,850.92
  5. Step 5: Solve for x
    x = 243,476,562,850.92/669,138.60
  6. Step 6: Final answer
    x = 363,865.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.